/*
 +-----------------------------------------------------------------------------------------------+
 | Project : UKAPI
 +-----------------------------------------------------------------------------------------------+
 | Project Description : Universal & Kernel API
 +-----------------------------------------------------------------------------------------------+
 | File Description :
 |   Memory Manager
 |                                                 
 +-----------------------------------------------------------------------------------------------+
 | Licence : MIT Licence
 +-----------------------------------------------------------------------------------------------+
 | Copyright (c) 2006 Olivier Vanhoucke
 | 
 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 | and associated documentation files (the "Software"), to deal in the Software without 
 | restriction, including without limitation the rights to use, copy, modify, merge, publish, 
 | distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the 
 | Software is furnished to do so, subject to the following conditions:
 | 
 | The above copyright notice and this permission notice shall be included in all copies or 
 | substantial portions of the Software.
 | 
 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 | BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 | DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 +-----------------------------------------------------------------------------------------------+
*/

#ifndef __UKAPI_KERNEL_MEMORY_MANAGER__
#define __UKAPI_KERNEL_MEMORY_MANAGER__

#include <binarytree.h>
#include <private/tiny_memory.h>

typedef struct
{
	binarytree_t	tree;
} memory_allocation_buddy_blocks_t, * pmemory_allocation_buddy_blocks_t;

typedef struct
{
	char toto;
} memory_allocation_tiny_t, * pmemory_allocation_tiny_t;

typedef struct
{
#if		( MEMORY_ALLOCATION_ALGORITHM == MEMORY_ALLOCATION_ALGORITHM_BUDDY_BLOCKS )
	memory_allocation_buddy_blocks_t	buddy_blocks;
#elif	( MEMORY_ALLOCATION_ALGORITHM == MEMORY_ALLOCATION_ALGORITHM_SLAB )
#elif	( MEMORY_ALLOCATION_ALGORITHM == MEMORY_ALLOCATION_ALGORITHM_PAGING )
#elif	( MEMORY_ALLOCATION_ALGORITHM == MEMORY_ALLOCATION_ALGORITHM_TINY )
	tiny_memory_t	tiny_kernel_space;
	tiny_memory_t	tiny_user_space;
#endif /* MEMORY_ALLOCATION_ALGORITHM */

	struct 
	{
		pointer_t	start_address;
		dword_t		total_size;
		pointer_t	(*memory_allocate)( size_t size );
		void		(*memory_free)( pointer_t ptr );
		pointer_t	(*memory_reallocate)( pointer_t ptr, size_t size );
	} kernel_space;

	struct 
	{
		pointer_t	start_address;
		dword_t		total_size;
		pointer_t	(*memory_allocate)( size_t size );
		void		(*memory_free)( pointer_t ptr );
		pointer_t	(*memory_reallocate)( pointer_t ptr, size_t size );
	} user_space;

	bool_t		use_mmu;
} memory_manager_t, * pmemory_manager_t;

#ifdef __cplusplus
	extern "C" {
#endif /* __cplusplus */

result_t memory_manager_init( pmemory_manager_t pmemory_manager );
//result_t memory_manager_garbage_collect( pmemory_manager_t pmemory_manager );
result_t memory_manager_deinit( pmemory_manager_t pmemory_manager );

#ifdef __cplusplus
	}
#endif /* __cplusplus */

#endif /* __UKAPI_KERNEL_MEMORY_MANAGER__ */
